This manual is a complete factory service repair manual for Hitachi ZW120-5B Wheel Loader. This manual consists of three portions: Hitachi ZW120-5B the Technical Manual (Troubleshooting) and Hitachi ZW120-5B Workshop Manual. Information included in the Technical Manual(Troubleshooting): technical information needed for operational performance tests, and troubleshooting procedures and Electrical Circuit Diagram. Information included in the Workshop Manual: technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal/installation and assemble/disassemble procedures. Service Repair Manual Covers: WORKSHOP MANUAL SECTION 1 GENERAL INFORMATION Group 1 Precautions for Disassembling and Assembling Group 2 Tightening Group 3 Painting Group 4 Bleeding Air Group 5 Releasing Pressure Group 6 Preparation SECTION 2 MAINTENANCE STANDARD Group 1 Body Group 2 Travel System Group 3 Front Attachment SECTION 3 BODY Group 1 Cab Group 2 Counterweight Group 3 Center Hinge Group 4 Engine Group 5 Radiator Assembly Group 6 Hydraulic Oil Tank Group 7 Pump Device Group 8 Control Valve Group 9 Priority Valve Group 10 Ride Control Device SECTION 4 TRAVEL SYSTEM Group 1 Tire Group 2 HST Motor Group 3 Transmission Group 4 Axle Group 5 Propeller Shaft Group 6 Brake Valve Group 7 Steering Device SECTION 5 FRONT ATTACHMENT Group 1 Front Attachment Group 2 Cylinder TECHNICAL MANUAL (Troubleshooting) SECTION 4 OPERATIONAL PERFORMANCE TEST Group 1 Introduction Group 2 Standard Group 3 Engine Test Group 4 Machine Performance Test Group 5 Component Test Group 6 Adjustment SECTION 5 TROUBLESHOOTING Group 1 Diagnosing Procedure Group 2 Monitor Group 3 e-Service Group 4 Component Layout Group 5 Troubleshooting A Group 6 Troubleshooting B Group 7 Troubleshooting C Group 8 Air Conditioner Hitachi ZW120-5B HYDRAULIC CIRCUIT DIAGRAM Hitachi ZW120-5B HYDRAULIC CIRCUIT DIAGRAM ================================================== High Quality PDF Manual,All pages are printable. Instant Download No Shipping Cost No Need to Wait For A CD-ROM File Format: PDF Language: English Compatible: All Versions of Windows & Mac Requirements: Adobe PDF Reader Thanks for visiting.